Engine.



W. PETZ- ENGINE.

APPLHIATION FILED SEPT. 5. 1914,

Patented Oct 9, 191?.

Stream/1;

madman sraria rarnnar marina.

WILLIAM PETZ, 0F FIRTH, NEBRASKA.

ENGINE.

To all whom it may concern: 7

Be it known that 1, WILLIAM Pnrz, a citizen of the United States,residing at Firth, inthe county of Lancaster and State of Nebraska, haveinvented new and useful Improvements in Engines, of which the followingis a specification.

This invention relates to internal combustion engines, the object inview being to provide a simple, effective and smooth running engine ofthe class described in which the parts and friction are reduced to aminimum, a single ignition device answering for a pair of cylinders, andthe pistons being efliciently water cooled throughout pract1- callytheir entire area.

With the above and other objects in view, the invention consists in thenovel construction, combination and arrangement of parts, as hereindescribed, illustrated and claimed.

In the accompanying drawings The accompanying drawing is a sideelevation partly broken away of an engine embodying the presentinvention.

Referring to the drawings A and B designate two cylinders which arearranged in opposed relation or end to end as shown, the adjoiningendsof said cylinders being connected to a common head 1 in which isincorporated a hot tube or bulb 2 left open at the bottom to enable aheating torch to be applied thereto to bring said bulb or tube to thenecessary degree of heat to insure the ignition of the gas in thecombustion chambers of the cylinders A and B.

Each cylinder is provided with an intake port 3 and an exhaust port 4,the air being admitted through the air intake pipe 5 to one of thecylinders and said pipe being provided with a branch 6 leading to theother cylinder. Check valves 5 and 6 control the discharge ends of thepipes 5 and 6. An exhaust pipe 7 is associated with the exhaust port ofone cylinder and a branch 8 of the pipe 7 is connected to thecorresponding exhaust port of the other cylinder, the ports 8 and 4 ineach cylinder being arranged on the two cycle principle.

In each of the cylindersA and B is arranged a reciprocatory piston 9which is formed with hollow or water jacketed side walls 10 and a hollowor water jacketed head 11, each piston being further provided with theusual gas deflecting or baffle lip 12.

The two pistons 9 are connected for si- Specification of Letters Patent.

racemes Got. a, 191?.

Application filed September 5, 1914. Serial No; 860,377.

multaneous reciprocatory movement in the' same direction by means of twopiston rods 13 arranged at opposite sides of the cylintened in anysuitable manner to the cylinders.

It is advisable to provide each of the pistons with a drain cook 32 atone end thereof communicating with the water jacket of the piston so asto enable the pistons to be drained in cold weather to prevent freezing.

In connection with each of the pistons, I employ oppositely locatedreciprocatory pipes 18. Each of the pipes 18 communicates through anangular extension 18 with the adjacent cylinder, one of said pipes beingemployed to conduct the water to the piston and the other to carry thewater ofi therefrom after it has circulated through the water jacket ofthe piston. In connection with each of the pipes 18 I employ a watercylinder 19, these cylinders being shown as flanged at 20 and fastenedby any convenient means to the opposite sides of the cylinders A and B,i I

21 designates a water intake pipe leading to one of the water cylinders19, and provided with a branch 22 leading to the other water cylinder19. At the opposite side of the engine is a water outlet pipe leadingfrom one of the water cylinders on that side and provided with a branchleading from the other water cylinder at the same side, the last namedpipe and branch not being shown. The pipes 18 slide telescopically inthe water cylinders 19 and travel with and are actuated by theirrespective pistons. In the preferred embodiment of this feature of theinvention, the water intake pipe is made of slightly less diameter thanthe pipes 18 at that side of the engine and at the opposite side, thewater outlet pipes 23 and 24: are

made of larger diameter than the pipes 18 at that side, the constructionreferred to insuring an easy and efiectivecirculation of water throughthe entire water cooling system.

One of the cylinders is in communication with a compression crank case25 in which the crank shaft 26 has its bearings, 27 designating aconnecting rod by means of which the. intense '5? tea the pisass' re'parted to the crank shaft. The other cylinchamber 28 shown in the formof a pipe sup;

ported at its outerend conveniently by the adjacent end of the branchintake pipe 6, and provided With a safety or pop valve 2-9 in casethecompression should become eX- cessive. There 'is, or" course,nocommunicati'on between the pipe 6 and the'auxiliary compressionchamber 28. V f

The gaseous mixture is introduced into the combustion chambers of thecylinders A and B through a pair vof injector nozzles 30 as shown, thegasbeing forced therein under pressure; .The hot bulb ortube 2 is provided with projecting deflecting fins 31 in each of the combustionchambers, said fins being arranged at an angle so as to de fiect andthoroughly agitate the mixtureas it fills the combustion chamberpreparatory tothe compression stroke of the piston.

These finsalso assist in the ignition of the charges. After the bulb ortube 2 has been heated, the heat'thereof Will be maintained by thesubsequent explosions in the combustion chambers, itbeing understoodthat copiesof this patent inay be obtained for in each combustionchamber the temperatureof the gas is raised to a high point by thecompressing action of the piston.

7 By means of the construction above described, iU'Will be observed thatmany of the parts ordinarily used in a two cylinder engine are dispensedWith, such as one connecting rod, two bearings, one crank, oneconnecting rod bearing and a proportionate reduction in friction, Onehot bulb of tube answers for two cylinders. .T-h'e construction alsopr'o'yid'e's for a thorough spraying or agitation of the fittercylinder:

What I claim is V, r In an internal combustion engine, a pair of opposedcylinders ar anged end to end, a) single head commonto' the adjoiningends oiboth cylinders ored out to form an inclosed hot ignition chamber,and gasdefleeting on oppositesides of said commo head. 7 V a 1In'testimony whereof I my signature in presence of two" Witnesses.

v WILLIAM PETZ. Witnesses: 1

' H; H; Aii'rE'R'BURN,

Geo. Dzssmmoa.

tive cents each, by addressing the (Commissioner of Patents, 7Washington, D; 0;

it enters the

